Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"span length"”.
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Links between Short-Term Memory and Word Retrieval in Aphasia
… short-term memory is an immediate repetition span task: individuals listen to a list of digits or words and repeat them immediately after the list ends. People with aphasia demonstrate digit and word span lengths below that of neurologically healthy individuals. More specifically, resent …
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Lateral Movement of Unbraced Wood Composite I-Joists Exposed to Dynamic Walking Loads
… configurations were used: one-quarter of the span length (60 in.) and one third the span length (80 in.). The dynamic walking loads consisted of human test subjects attached to a safety platform walking across the I-joist at a designated pace. Experimental results for this research consisted …
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Lateral Restraint Brace Forces in Quarter Point and Third Point Plus Support Braced Z-Purlin Supported Roof Systems Subject to Gravity Load
… of the purlin, number of purlin lines, number of spans, and span length. A regression analysis was then performed on the data to obtain empirical design equations similar to those found in the 1996 Edition of the American Iron and Steel Institute's Specification for the Design of Cold-Formed Steel …
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Investigation of Steel Joist Supported Wood Floor Systems
… systems were constructed in the laboratory. Span length, joist spacing and diagonal bracing were the only parameters modified for each floor. Four tests were performed for each floor setup: heel drop impact, walking perpendicular and parallel to the floor joists, static concentrated load at …
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Investigating the relationship of verbal span and spatial span in a combination task
Measurement of working memory span typically involves tasks designed to introduce stimuli to the unique slave systems. It is widely accepted that these isolated measurements indicate, at a relatively simple level, the span of the given working memory system. This study hypothesizes that separate …
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Dynamic response of highway bridges under a moving truck and development of a rational serviceability requirement
… which includes bridge frequency, damping ratio, span length, girders distance, bracing, support conditions, truck speed, load sequence, axle's weight, and number of spans. Bridge and vehicle k-parameters, which represent the number of vibration cycles before the next excitation occurs, are …
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An investigation of the relationships between inventory and inspection data of RC bridges and RC culverts in the Western Cape Province
… inventory data such as structure type, age and span length/width. STATA 2011 logit models were used to investigate whether the relationships were statistically significant and to determine odds ratios of several ’events’. In addition to this, the average Condition Indices (CIs), numerical …
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Flexural Behavior of Cold-Formed and Hot-Rolled Steel Sheet Piling Subjected to Simulated Soil Pressure
… transversely to their longitudinal axis. The span lengths were varied, while the loading area remains unchanged to examine the effect of different transverse stresses. Lateral bracings were provided at discrete locations to establish a sheet piling wall behavior and allow the development of …
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Review of codes of practice for the design of box culverts for recommendation for South African Bureau of Standards (SABS)
… and maximum positive shear forces for each span for the top slab. The load forces obtained for each span are then plotted against the soil cover depth to illustrate the discrete load effect of the vertical earth load and live load on the culverts at varying fill height and to determine the …
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Finite Element Analysis of Unbraced Structural Wood I-Joists Under Construction Loads
… to 14 inches in depth and 20 feet to 24 feet in length. I-joists were subjected to static and dynamic loads. The deflections of the top and bottom flanges, as well as the rotation, were measured or calculated at both one-half and one-quarter the span length. The overall goal of this project is to …
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Study of Internal Strains Developed in Concrete Decks at Early Ages in Steel Continuous Bridges
… steel bridge. Stress analysis study through the span length of bridge 030428 detected some locations prone to concrete cracking due to the variability of concrete mechanical properties and stress developed in the concrete deck. This thesis describes the results of this monitoring and anything …
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Computational recognition and comprehension of humor in the context of a general error investigation system
… with narrative such as suspense, attention span length, attention density, and moments of insight. Variations in Expert parameters account for different senses of humor in individuals. This new scope of understanding allows Genesis to help authors search their narratives to determine if …
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Provably efficient randomized work stealing with first-class parallel loops
… work (total computation) and T[infinity] is the span (length of longest dependency path). On the implementation side, M-D LoopFrame is benchmarked against nested forloops and divide-and-conquer methods on a matrix multiplication computation on a single processor. M-D LoopFrame proves to have …
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Natural frequencies evaluation on existing reinforced concrete bridges using microtremor testing
… the natural frequencies of two different lengths of reinforced concrete bridges crossing Sungai Sembrong and Sungai Simpang Kiri. By using GEOPSY software, Fourier Spectra Amplitude Ratio (FSA) analysis used for determining bridge natural frequencies and …
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Slab-on-girder prestressed concrete bridges: linear and nonlinear finite element analysis and experimental load tests
… diaphragms, usually placed at the midspan or third points of a bridge, are thought to contribute to the overall distribution of live loads in bridges. Cast-in-place concrete intermediate diaphragms were investigated in this study in order to assess their load distribution effectiveness …
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Transmission Electron Microscopy Of Structural Disorder In Two-Dimensional Materials
… and molybdenum disulfide. These experiments span length scales across five orders of magnitude to image every atom at the grain boundaries through atomic-resolution scanning TEM and rapidly map the location, orientation, and shape of several hundred grains with dark-field TEM. Correlating …
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Analysis and Design of Steel Deck-Concrete Composite Slabs
… includes the possibility of developing long span composite slab systems. For this purpose, new deck profiles that can have a longer span and better interaction with the concrete slab are investigated. Two new mechanical based methods for predicting composite slab strength and behavior are …
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Recommendations for Longitudinal Post-Tensioning in Full-Depth Precast Concrete Bridge Deck Panels
… differing girder types, sizes, spacings, and span lengths. Therefore, the development of guidelines for levels of post-tensioning applicable to a variety of bridge types is necessary so designers may easily implement precast concrete panels in bridge deck construction or rehabilitation. To …
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Design of Sandwich Structures
… mode and load on the ratio of skin thickness to span length and honeycomb relative density. Beam specimens are tested in 3-point bending. The effect of honeycomb direction is also examined. The experimental data agree satisfactorily with the theoretical predictions. The results reveal the …
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Preliminary Investigation of the Mechanical Properties of Costal Cartilage and Costochondral Junction in Three-Point Bending
… samples. The failure location along the testing span length was also calculated for the samples that failed successfully. The effects of sample type, age, and sex on the structural properties were statistically evaluated. Force and stiffness were not significantly affected by sample type, age, or …
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